{"event":{"id":"evt-hist-staging-125","dedupe_key":"model_weights_release:2025-04-05:meta-releases-llama-4-scout-and-maverick-weights-and-previews-behemoth","event_type":"model_weights_release","title":"Meta releases Llama 4 Scout and Maverick weights and previews Behemoth","summary":"Meta announced downloadable Llama 4 Scout and Maverick weights on April 5, 2025. Behemoth remained in training and was previewed. Comparative benchmark results are supplier claims; custom-licensed open weights do not establish unrestricted open-source licensing.","occurred_at":"2025-04-05T00:00:00.000Z","published_at":"2025-04-05T00:00:00.000Z","observed_at":"2026-10-19T04:31:49.000Z","reconstructed_at":"2026-10-19T04:31:49.000Z","ingest_type":"historical_backfill","locations":null,"status":"verified","confidence":0.9,"metadata":{"external_postcutoff_id":"2025-04-05-llama-4","original_index_position":125,"date_precision":"day","evidence_only":1,"global_novelty_unproven":1,"time_is_day_precision_placeholder":1},"created_at":"2026-10-19T05:47:09.386Z","updated_at":"2026-10-19T05:47:09.386Z"},"artifacts":[{"id":"art-hist-staging-125","dedupe_key":"b2dd56fd3bf46f6af4777b14585924615dd0005afd2971a2692575b623eb1091","canonical_url":"https://ai.meta.com/blog/llama-4-multimodal-intelligence/","evidence_locator":"","artifact_type":"original_publication","title":"Meta releases Llama 4 Scout and Maverick weights and previews Behemoth","summary":"","creator_entities":[],"released_at":"2025-04-05T00:00:00.000Z","content_hash":null,"metadata":[],"created_at":"2026-10-19T05:47:09.385Z","updated_at":"2026-10-19T05:47:09.385Z","relation":"documented_by"}],"signals":[]}